I have a derringer that is stamped .32H&R magnum . I can't find ammo . A few gun shops told me that .32 long is the same as .32 H&R magnum . I definitely don't want to fire the wrong ammo . Are these two cartridges the same ?

BUFF;
Thanks for the info . Do you think with this being a derringer .32H&R mag , that if I shoot .32long it will make a lomger life for my derringer , instead of using the mag ammo that i'm having trouble finding?

I predict anyone shooting a hundred rounds through a derringer would be ready to move on to something else. Not much you can do even plinking with one; you're just pulling the trigger to hear it go off.

Even with "serious practice" on a B27 silhouette, how many times you want to run that drill ?

Not knocking your derringer ( I have a High Standard 22 mag that has its place in the battery) . . . just reinforcing the idea that it's doubtful too many folks ever shoot one enough to wear it out.

Shoot the .32 longs until you can find the more effective mags - just clean the chamber good before you switch so the magnum empties extract easily.

A Derringer is a velcro gun. (A lot like many .25 auto's)
Unless you have it pressed up against the intended soon to be departed you've found yourself opposite, you'll miss. I can't count the amount of time and ammunition I wasted trying to gain "competency" with a Remington O/U Derringer clone in .38 Special.
FWIW, it's the type of gun that will be fired a maximum of 3 times. Once, to see if it fires. The second time (God forbid) when you've found it necessary to screw it into some miscreants sternum or under his chin. And third, when the crime lab is trying to see if the ballistics match.
IMHO, practice pulling and cocking it in a timely fashion. Buy a 20 round box of the Magnums (because that's the smallest quantity you can buy them in) and call it good.
YMMV?

I have a derringer that is stamped .32H&R magnum . I can't find ammo . A few gun shops told me that .32 long is the same as .32 H&R magnum . I definitely don't want to fire the wrong ammo . Are these two cartridges the same ?

Man,you guys are great with the info. I have recently purchased a .32S&W and a .32long .since both of these cartridges will work, It makes it easier on my pocket book using ammo I already have AS I probably really won't be running alot of ammo thru the derringer.
Thanks

gerb:
The S&W models 30 and 31 can be safely rechambered to 32 mag. I would NOT do this in a S&W I frame or H&R 32 long. I've measured all of the cylinders and I frames and H&Rs are too thin. There hasn't been any mention in this thread, but FWIW, I absolutely wouldn't rechamber ANY of the above revolvers to 327 Federal.
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